GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Squeaking noise from front left wheel+ crunshing noise when car is warmed up

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Old 07-09-23, 03:09 AM
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Gs430GER
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Default Squeaking noise from front left wheel+ crunshing noise when car is warmed up

Hi everyone,

im facing a strange problem with my 01 GS430. First i noticed a strange squeaking noise from the front left Wheel when driving slow (approx. Until 10mph after that its gone) had that noise a few weeks after i bought the car. Already did the front brakes completly + ball joints (previous owner didnt replaced them).

After i replaced the brakes, a crunching noise additional occured but only if i drive the car for a few km‘s.

The brake disc isnt touching anything (what i first thought), thats the point that is driving me nuts as i now its coming from the left wheel bit not the disc as i thought. I dont now if its the wheel bearing maybe?

hope you guys can help me, i have attached two videos where you can hear both noises.
Old 07-09-23, 08:35 AM
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DundukovEM
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1. Lift the wheel off the ground and spin / shake it well.
2. Remove the wheel, put a couple wheel nuts back on the wheel hub to hold the brake rotor in place and spin it again.
3. Listen and identify the source of the noise.
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Old 07-09-23, 08:41 AM
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Gs430GER
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Sorry, forgot to upload the vids. Already tried locate the noise, but its not coming from the Brake disc itself
Attached Files
File Type: mov
IMG_5757.mov (17.56 MB, 12 views)
File Type: mov
IMG_5781.mov (16.84 MB, 6 views)
Old 07-09-23, 09:41 AM
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BayAreaLex
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Wow that’s a lot of play.

appears to be wheel bearing related
Old 07-09-23, 05:48 PM
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DundukovEM
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Originally Posted by Gs430GER
Sorry, forgot to upload the vids. Already tried locate the noise, but its not coming from the Brake disc itself
The test was performed incorrectly. Install a pair of wheel nuts back onto the wheel hub and tighten them slightly to hold the brake disc in place. Then shake and spin it.
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